621323820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{15619}}^1$

素因数の和:15664

約数の個数: 144

約数和(自身を含む): 2149187040

約数和(自身を除く): 1527863220

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 30, 34, 36, 39, 45, 51, 52, 60, 65, 68, 78, 85, 90, 102, 117, 130, 153, 156, 170, 180, 195, 204, 221, 234, 255, 260, 306, 340, 390, 442, 468, 510, 585, 612, 663, 765, 780, 884, 1020, 1105, 1170, 1326, 1530, 1989, 2210, 2340, 2652, 3060, 3315, 3978, 4420, 6630, 7956, 9945, 13260, 15619, 19890, 31238, 39780, 46857, 62476, 78095, 93714, 140571, 156190, 187428, 203047, 234285, 265523, 281142, 312380, 406094, 468570, 531046, 562284, 609141, 702855, 796569, 812188, 937140, 1015235, 1062092, 1218282, 1327615, 1405710, 1593138, 1827423, 2030470, 2389707, 2436564, 2655230, 2811420, 3045705, 3186276, 3451799, 3654846, 3982845, 4060940, 4779414, 5310460, 6091410, 6903598, 7309692, 7965690, 9137115, 9558828, 10355397, 11948535, 12182820, 13807196, 15931380, 17258995, 18274230, 20710794, 23897070, 31066191, 34517990, 36548460, 41421588, 47794140, 51776985, 62132382, 69035980, 103553970, 124264764, 155330955, 207107940, 310661910, 621323820]

約数ペア:

[(1, 621323820), (2, 310661910), (3, 207107940), (4, 155330955), (5, 124264764), (6, 103553970), (9, 69035980), (10, 62132382), (12, 51776985), (13, 47794140), (15, 41421588), (17, 36548460), (18, 34517990), (20, 31066191), (26, 23897070), (30, 20710794), (34, 18274230), (36, 17258995), (39, 15931380), (45, 13807196), (51, 12182820), (52, 11948535), (60, 10355397), (65, 9558828), (68, 9137115), (78, 7965690), (85, 7309692), (90, 6903598), (102, 6091410), (117, 5310460), (130, 4779414), (153, 4060940), (156, 3982845), (170, 3654846), (180, 3451799), (195, 3186276), (204, 3045705), (221, 2811420), (234, 2655230), (255, 2436564), (260, 2389707), (306, 2030470), (340, 1827423), (390, 1593138), (442, 1405710), (468, 1327615), (510, 1218282), (585, 1062092), (612, 1015235), (663, 937140), (765, 812188), (780, 796569), (884, 702855), (1020, 609141), (1105, 562284), (1170, 531046), (1326, 468570), (1530, 406094), (1989, 312380), (2210, 281142), (2340, 265523), (2652, 234285), (3060, 203047), (3315, 187428), (3978, 156190), (4420, 140571), (6630, 93714), (7956, 78095), (9945, 62476), (13260, 46857), (15619, 39780), (19890, 31238)]