209579220

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{23}}^2\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:163

約数の個数: 216

約数和(自身を含む): 695665152

約数和(自身を除く): 486085932

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 23, 30, 31, 36, 45, 46, 60, 62, 69, 71, 90, 92, 93, 115, 124, 138, 142, 155, 180, 186, 207, 213, 230, 276, 279, 284, 310, 345, 355, 372, 414, 426, 460, 465, 529, 558, 620, 639, 690, 710, 713, 828, 852, 930, 1035, 1058, 1065, 1116, 1278, 1380, 1395, 1420, 1426, 1587, 1633, 1860, 2070, 2116, 2130, 2139, 2201, 2556, 2645, 2790, 2852, 3174, 3195, 3266, 3565, 4140, 4260, 4278, 4402, 4761, 4899, 5290, 5580, 6348, 6390, 6417, 6532, 6603, 7130, 7935, 8165, 8556, 8804, 9522, 9798, 10580, 10695, 11005, 12780, 12834, 13206, 14260, 14697, 15870, 16330, 16399, 19044, 19596, 19809, 21390, 22010, 23805, 24495, 25668, 26412, 29394, 31740, 32085, 32660, 32798, 33015, 37559, 39618, 42780, 44020, 47610, 48990, 49197, 50623, 58788, 64170, 65596, 66030, 73485, 75118, 79236, 81995, 95220, 97980, 98394, 99045, 101246, 112677, 128340, 132060, 146970, 147591, 150236, 151869, 163990, 187795, 196788, 198090, 202492, 225354, 245985, 253115, 293940, 295182, 303738, 327980, 338031, 375590, 396180, 450708, 455607, 491970, 506230, 563385, 590364, 607476, 676062, 737955, 751180, 759345, 911214, 983940, 1012460, 1126770, 1164329, 1352124, 1475910, 1518690, 1690155, 1822428, 2253540, 2278035, 2328658, 2951820, 3037380, 3380310, 3492987, 4556070, 4657316, 5821645, 6760620, 6985974, 9112140, 10478961, 11643290, 13971948, 17464935, 20957922, 23286580, 34929870, 41915844, 52394805, 69859740, 104789610, 209579220]

約数ペア:

[(1, 209579220), (2, 104789610), (3, 69859740), (4, 52394805), (5, 41915844), (6, 34929870), (9, 23286580), (10, 20957922), (12, 17464935), (15, 13971948), (18, 11643290), (20, 10478961), (23, 9112140), (30, 6985974), (31, 6760620), (36, 5821645), (45, 4657316), (46, 4556070), (60, 3492987), (62, 3380310), (69, 3037380), (71, 2951820), (90, 2328658), (92, 2278035), (93, 2253540), (115, 1822428), (124, 1690155), (138, 1518690), (142, 1475910), (155, 1352124), (180, 1164329), (186, 1126770), (207, 1012460), (213, 983940), (230, 911214), (276, 759345), (279, 751180), (284, 737955), (310, 676062), (345, 607476), (355, 590364), (372, 563385), (414, 506230), (426, 491970), (460, 455607), (465, 450708), (529, 396180), (558, 375590), (620, 338031), (639, 327980), (690, 303738), (710, 295182), (713, 293940), (828, 253115), (852, 245985), (930, 225354), (1035, 202492), (1058, 198090), (1065, 196788), (1116, 187795), (1278, 163990), (1380, 151869), (1395, 150236), (1420, 147591), (1426, 146970), (1587, 132060), (1633, 128340), (1860, 112677), (2070, 101246), (2116, 99045), (2130, 98394), (2139, 97980), (2201, 95220), (2556, 81995), (2645, 79236), (2790, 75118), (2852, 73485), (3174, 66030), (3195, 65596), (3266, 64170), (3565, 58788), (4140, 50623), (4260, 49197), (4278, 48990), (4402, 47610), (4761, 44020), (4899, 42780), (5290, 39618), (5580, 37559), (6348, 33015), (6390, 32798), (6417, 32660), (6532, 32085), (6603, 31740), (7130, 29394), (7935, 26412), (8165, 25668), (8556, 24495), (8804, 23805), (9522, 22010), (9798, 21390), (10580, 19809), (10695, 19596), (11005, 19044), (12780, 16399), (12834, 16330), (13206, 15870), (14260, 14697)]