28637180

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 192

約数和(自身を含む): 81285120

約数和(自身を除く): 52647940

約数列:

[1, 2, 4, 5, 10, 11, 13, 17, 19, 20, 22, 26, 31, 34, 38, 44, 52, 55, 62, 65, 68, 76, 85, 95, 110, 124, 130, 143, 155, 170, 187, 190, 209, 220, 221, 247, 260, 286, 310, 323, 340, 341, 374, 380, 403, 418, 442, 494, 527, 572, 589, 620, 646, 682, 715, 748, 806, 836, 884, 935, 988, 1045, 1054, 1105, 1178, 1235, 1292, 1364, 1430, 1612, 1615, 1705, 1870, 2015, 2090, 2108, 2210, 2356, 2431, 2470, 2635, 2717, 2860, 2945, 3230, 3410, 3553, 3740, 4030, 4180, 4199, 4420, 4433, 4862, 4940, 5270, 5434, 5797, 5890, 6460, 6479, 6820, 6851, 7106, 7657, 8060, 8398, 8866, 9724, 10013, 10540, 10868, 11594, 11780, 12155, 12958, 13585, 13702, 14212, 15314, 16796, 17732, 17765, 20026, 20995, 22165, 23188, 24310, 25916, 27170, 27404, 28985, 30628, 32395, 34255, 35530, 38285, 40052, 41990, 44330, 46189, 48620, 50065, 54340, 57970, 64790, 68510, 71060, 75361, 76570, 83980, 84227, 88660, 92378, 100130, 110143, 115940, 129580, 130169, 137020, 150722, 153140, 168454, 184756, 200260, 220286, 230945, 260338, 301444, 336908, 376805, 421135, 440572, 461890, 520676, 550715, 650845, 753610, 842270, 923780, 1101430, 1301690, 1431859, 1507220, 1684540, 2202860, 2603380, 2863718, 5727436, 7159295, 14318590, 28637180]

約数ペア:

[(1, 28637180), (2, 14318590), (4, 7159295), (5, 5727436), (10, 2863718), (11, 2603380), (13, 2202860), (17, 1684540), (19, 1507220), (20, 1431859), (22, 1301690), (26, 1101430), (31, 923780), (34, 842270), (38, 753610), (44, 650845), (52, 550715), (55, 520676), (62, 461890), (65, 440572), (68, 421135), (76, 376805), (85, 336908), (95, 301444), (110, 260338), (124, 230945), (130, 220286), (143, 200260), (155, 184756), (170, 168454), (187, 153140), (190, 150722), (209, 137020), (220, 130169), (221, 129580), (247, 115940), (260, 110143), (286, 100130), (310, 92378), (323, 88660), (340, 84227), (341, 83980), (374, 76570), (380, 75361), (403, 71060), (418, 68510), (442, 64790), (494, 57970), (527, 54340), (572, 50065), (589, 48620), (620, 46189), (646, 44330), (682, 41990), (715, 40052), (748, 38285), (806, 35530), (836, 34255), (884, 32395), (935, 30628), (988, 28985), (1045, 27404), (1054, 27170), (1105, 25916), (1178, 24310), (1235, 23188), (1292, 22165), (1364, 20995), (1430, 20026), (1612, 17765), (1615, 17732), (1705, 16796), (1870, 15314), (2015, 14212), (2090, 13702), (2108, 13585), (2210, 12958), (2356, 12155), (2431, 11780), (2470, 11594), (2635, 10868), (2717, 10540), (2860, 10013), (2945, 9724), (3230, 8866), (3410, 8398), (3553, 8060), (3740, 7657), (4030, 7106), (4180, 6851), (4199, 6820), (4420, 6479), (4433, 6460), (4862, 5890), (4940, 5797), (5270, 5434)]