289059160

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1721}}^1$

素因数の和:1781

約数の個数: 128

約数和(自身を含む): 781099200

約数和(自身を除く): 492040040

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 19, 20, 26, 34, 38, 40, 52, 65, 68, 76, 85, 95, 104, 130, 136, 152, 170, 190, 221, 247, 260, 323, 340, 380, 442, 494, 520, 646, 680, 760, 884, 988, 1105, 1235, 1292, 1615, 1721, 1768, 1976, 2210, 2470, 2584, 3230, 3442, 4199, 4420, 4940, 6460, 6884, 8398, 8605, 8840, 9880, 12920, 13768, 16796, 17210, 20995, 22373, 29257, 32699, 33592, 34420, 41990, 44746, 58514, 65398, 68840, 83980, 89492, 111865, 117028, 130796, 146285, 163495, 167960, 178984, 223730, 234056, 261592, 292570, 326990, 380341, 425087, 447460, 555883, 585140, 653980, 760682, 850174, 894920, 1111766, 1170280, 1307960, 1521364, 1700348, 1901705, 2125435, 2223532, 2779415, 3042728, 3400696, 3803410, 4250870, 4447064, 5558830, 7226479, 7606820, 8501740, 11117660, 14452958, 15213640, 17003480, 22235320, 28905916, 36132395, 57811832, 72264790, 144529580, 289059160]

約数ペア:

[(1, 289059160), (2, 144529580), (4, 72264790), (5, 57811832), (8, 36132395), (10, 28905916), (13, 22235320), (17, 17003480), (19, 15213640), (20, 14452958), (26, 11117660), (34, 8501740), (38, 7606820), (40, 7226479), (52, 5558830), (65, 4447064), (68, 4250870), (76, 3803410), (85, 3400696), (95, 3042728), (104, 2779415), (130, 2223532), (136, 2125435), (152, 1901705), (170, 1700348), (190, 1521364), (221, 1307960), (247, 1170280), (260, 1111766), (323, 894920), (340, 850174), (380, 760682), (442, 653980), (494, 585140), (520, 555883), (646, 447460), (680, 425087), (760, 380341), (884, 326990), (988, 292570), (1105, 261592), (1235, 234056), (1292, 223730), (1615, 178984), (1721, 167960), (1768, 163495), (1976, 146285), (2210, 130796), (2470, 117028), (2584, 111865), (3230, 89492), (3442, 83980), (4199, 68840), (4420, 65398), (4940, 58514), (6460, 44746), (6884, 41990), (8398, 34420), (8605, 33592), (8840, 32699), (9880, 29257), (12920, 22373), (13768, 20995), (16796, 17210)]