388633980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1571}}^1$

素因数の和:1640

約数の個数: 192

約数和(自身を含む): 1352171520

約数和(自身を除く): 963537540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 31, 35, 38, 42, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 124, 133, 140, 155, 186, 190, 210, 217, 228, 266, 285, 310, 372, 380, 399, 420, 434, 465, 532, 570, 589, 620, 651, 665, 798, 868, 930, 1085, 1140, 1178, 1302, 1330, 1571, 1596, 1767, 1860, 1995, 2170, 2356, 2604, 2660, 2945, 3142, 3255, 3534, 3990, 4123, 4340, 4713, 5890, 6284, 6510, 7068, 7855, 7980, 8246, 8835, 9426, 10997, 11780, 12369, 13020, 15710, 16492, 17670, 18852, 20615, 21994, 23565, 24738, 29849, 31420, 32991, 35340, 41230, 43988, 47130, 48701, 49476, 54985, 59698, 61845, 65982, 82460, 89547, 94260, 97402, 109970, 119396, 123690, 131964, 146103, 149245, 164955, 179094, 194804, 208943, 219940, 243505, 247380, 292206, 298490, 329910, 340907, 358188, 417886, 447735, 487010, 584412, 596980, 626829, 659820, 681814, 730515, 835772, 895470, 925319, 974020, 1022721, 1044715, 1253658, 1363628, 1461030, 1704535, 1790940, 1850638, 2045442, 2089430, 2507316, 2775957, 2922060, 3134145, 3409070, 3701276, 4090884, 4178860, 4626595, 5113605, 5551914, 6268290, 6477233, 6818140, 9253190, 10227210, 11103828, 12536580, 12954466, 13879785, 18506380, 19431699, 20454420, 25908932, 27759570, 32386165, 38863398, 55519140, 64772330, 77726796, 97158495, 129544660, 194316990, 388633980]

約数ペア:

[(1, 388633980), (2, 194316990), (3, 129544660), (4, 97158495), (5, 77726796), (6, 64772330), (7, 55519140), (10, 38863398), (12, 32386165), (14, 27759570), (15, 25908932), (19, 20454420), (20, 19431699), (21, 18506380), (28, 13879785), (30, 12954466), (31, 12536580), (35, 11103828), (38, 10227210), (42, 9253190), (57, 6818140), (60, 6477233), (62, 6268290), (70, 5551914), (76, 5113605), (84, 4626595), (93, 4178860), (95, 4090884), (105, 3701276), (114, 3409070), (124, 3134145), (133, 2922060), (140, 2775957), (155, 2507316), (186, 2089430), (190, 2045442), (210, 1850638), (217, 1790940), (228, 1704535), (266, 1461030), (285, 1363628), (310, 1253658), (372, 1044715), (380, 1022721), (399, 974020), (420, 925319), (434, 895470), (465, 835772), (532, 730515), (570, 681814), (589, 659820), (620, 626829), (651, 596980), (665, 584412), (798, 487010), (868, 447735), (930, 417886), (1085, 358188), (1140, 340907), (1178, 329910), (1302, 298490), (1330, 292206), (1571, 247380), (1596, 243505), (1767, 219940), (1860, 208943), (1995, 194804), (2170, 179094), (2356, 164955), (2604, 149245), (2660, 146103), (2945, 131964), (3142, 123690), (3255, 119396), (3534, 109970), (3990, 97402), (4123, 94260), (4340, 89547), (4713, 82460), (5890, 65982), (6284, 61845), (6510, 59698), (7068, 54985), (7855, 49476), (7980, 48701), (8246, 47130), (8835, 43988), (9426, 41230), (10997, 35340), (11780, 32991), (12369, 31420), (13020, 29849), (15710, 24738), (16492, 23565), (17670, 21994), (18852, 20615)]