128869020

素因数分解:

$2^2\times 3^2\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{769}}^1$

素因数の和:817

約数の個数: 216

約数和(自身を含む): 479278800

約数和(自身を除く): 350409780

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 49, 57, 60, 63, 70, 76, 84, 90, 95, 98, 105, 114, 126, 133, 140, 147, 171, 180, 190, 196, 210, 228, 245, 252, 266, 285, 294, 315, 342, 380, 399, 420, 441, 490, 532, 570, 588, 630, 665, 684, 735, 769, 798, 855, 882, 931, 980, 1140, 1197, 1260, 1330, 1470, 1538, 1596, 1710, 1764, 1862, 1995, 2205, 2307, 2394, 2660, 2793, 2940, 3076, 3420, 3724, 3845, 3990, 4410, 4614, 4655, 4788, 5383, 5586, 5985, 6921, 7690, 7980, 8379, 8820, 9228, 9310, 10766, 11172, 11535, 11970, 13842, 13965, 14611, 15380, 16149, 16758, 18620, 21532, 23070, 23940, 26915, 27684, 27930, 29222, 32298, 33516, 34605, 37681, 41895, 43833, 46140, 48447, 53830, 55860, 58444, 64596, 69210, 73055, 75362, 80745, 83790, 87666, 96894, 102277, 107660, 113043, 131499, 138420, 146110, 150724, 161490, 167580, 175332, 188405, 193788, 204554, 219165, 226086, 242235, 262998, 292220, 306831, 322980, 339129, 376810, 409108, 438330, 452172, 484470, 511385, 525996, 565215, 613662, 657495, 678258, 715939, 753620, 876660, 920493, 968940, 1022770, 1130430, 1227324, 1314990, 1356516, 1431878, 1534155, 1695645, 1840986, 2045540, 2147817, 2260860, 2629980, 2863756, 3068310, 3391290, 3579695, 3681972, 4295634, 4602465, 6136620, 6443451, 6782580, 7159390, 8591268, 9204930, 10739085, 12886902, 14318780, 18409860, 21478170, 25773804, 32217255, 42956340, 64434510, 128869020]

約数ペア:

[(1, 128869020), (2, 64434510), (3, 42956340), (4, 32217255), (5, 25773804), (6, 21478170), (7, 18409860), (9, 14318780), (10, 12886902), (12, 10739085), (14, 9204930), (15, 8591268), (18, 7159390), (19, 6782580), (20, 6443451), (21, 6136620), (28, 4602465), (30, 4295634), (35, 3681972), (36, 3579695), (38, 3391290), (42, 3068310), (45, 2863756), (49, 2629980), (57, 2260860), (60, 2147817), (63, 2045540), (70, 1840986), (76, 1695645), (84, 1534155), (90, 1431878), (95, 1356516), (98, 1314990), (105, 1227324), (114, 1130430), (126, 1022770), (133, 968940), (140, 920493), (147, 876660), (171, 753620), (180, 715939), (190, 678258), (196, 657495), (210, 613662), (228, 565215), (245, 525996), (252, 511385), (266, 484470), (285, 452172), (294, 438330), (315, 409108), (342, 376810), (380, 339129), (399, 322980), (420, 306831), (441, 292220), (490, 262998), (532, 242235), (570, 226086), (588, 219165), (630, 204554), (665, 193788), (684, 188405), (735, 175332), (769, 167580), (798, 161490), (855, 150724), (882, 146110), (931, 138420), (980, 131499), (1140, 113043), (1197, 107660), (1260, 102277), (1330, 96894), (1470, 87666), (1538, 83790), (1596, 80745), (1710, 75362), (1764, 73055), (1862, 69210), (1995, 64596), (2205, 58444), (2307, 55860), (2394, 53830), (2660, 48447), (2793, 46140), (2940, 43833), (3076, 41895), (3420, 37681), (3724, 34605), (3845, 33516), (3990, 32298), (4410, 29222), (4614, 27930), (4655, 27684), (4788, 26915), (5383, 23940), (5586, 23070), (5985, 21532), (6921, 18620), (7690, 16758), (7980, 16149), (8379, 15380), (8820, 14611), (9228, 13965), (9310, 13842), (10766, 11970), (11172, 11535)]