28097580

素因数分解:

$2^2\times 3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{503}}^1$

素因数の和:548

約数の個数: 144

約数和(自身を含む): 96526080

約数和(自身を除く): 68428500

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 35, 38, 42, 49, 57, 60, 70, 76, 84, 95, 98, 105, 114, 133, 140, 147, 190, 196, 210, 228, 245, 266, 285, 294, 380, 399, 420, 490, 503, 532, 570, 588, 665, 735, 798, 931, 980, 1006, 1140, 1330, 1470, 1509, 1596, 1862, 1995, 2012, 2515, 2660, 2793, 2940, 3018, 3521, 3724, 3990, 4655, 5030, 5586, 6036, 7042, 7545, 7980, 9310, 9557, 10060, 10563, 11172, 13965, 14084, 15090, 17605, 18620, 19114, 21126, 24647, 27930, 28671, 30180, 35210, 38228, 42252, 47785, 49294, 52815, 55860, 57342, 66899, 70420, 73941, 95570, 98588, 105630, 114684, 123235, 133798, 143355, 147882, 191140, 200697, 211260, 246470, 267596, 286710, 295764, 334495, 369705, 401394, 468293, 492940, 573420, 668990, 739410, 802788, 936586, 1003485, 1337980, 1404879, 1478820, 1873172, 2006970, 2341465, 2809758, 4013940, 4682930, 5619516, 7024395, 9365860, 14048790, 28097580]

約数ペア:

[(1, 28097580), (2, 14048790), (3, 9365860), (4, 7024395), (5, 5619516), (6, 4682930), (7, 4013940), (10, 2809758), (12, 2341465), (14, 2006970), (15, 1873172), (19, 1478820), (20, 1404879), (21, 1337980), (28, 1003485), (30, 936586), (35, 802788), (38, 739410), (42, 668990), (49, 573420), (57, 492940), (60, 468293), (70, 401394), (76, 369705), (84, 334495), (95, 295764), (98, 286710), (105, 267596), (114, 246470), (133, 211260), (140, 200697), (147, 191140), (190, 147882), (196, 143355), (210, 133798), (228, 123235), (245, 114684), (266, 105630), (285, 98588), (294, 95570), (380, 73941), (399, 70420), (420, 66899), (490, 57342), (503, 55860), (532, 52815), (570, 49294), (588, 47785), (665, 42252), (735, 38228), (798, 35210), (931, 30180), (980, 28671), (1006, 27930), (1140, 24647), (1330, 21126), (1470, 19114), (1509, 18620), (1596, 17605), (1862, 15090), (1995, 14084), (2012, 13965), (2515, 11172), (2660, 10563), (2793, 10060), (2940, 9557), (3018, 9310), (3521, 7980), (3724, 7545), (3990, 7042), (4655, 6036), (5030, 5586)]