20121015204

素因数分解:

$2^2\times 3^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{419}}^1\times {\mathrm{983}}^1$

素因数の和:1494

約数の個数: 144

約数和(自身を含む): 54156211200

約数和(自身を除く): 34035195996

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 23, 36, 46, 59, 69, 92, 118, 138, 177, 207, 236, 276, 354, 414, 419, 531, 708, 828, 838, 983, 1062, 1257, 1357, 1676, 1966, 2124, 2514, 2714, 2949, 3771, 3932, 4071, 5028, 5428, 5898, 7542, 8142, 8847, 9637, 11796, 12213, 15084, 16284, 17694, 19274, 22609, 24426, 24721, 28911, 35388, 38548, 45218, 48852, 49442, 57822, 57997, 67827, 74163, 86733, 90436, 98884, 115644, 115994, 135654, 148326, 173466, 173991, 203481, 222489, 231988, 271308, 296652, 346932, 347982, 406962, 411877, 444978, 521973, 568583, 695964, 813924, 823754, 889956, 1043946, 1137166, 1235631, 1333931, 1647508, 1705749, 2087892, 2274332, 2471262, 2667862, 3411498, 3706893, 4001793, 4942524, 5117247, 5335724, 6822996, 7413786, 8003586, 9473171, 10234494, 12005379, 14827572, 16007172, 18946342, 20468988, 24010758, 24300743, 28419513, 37892684, 48021516, 48601486, 56839026, 72902229, 85258539, 97202972, 113678052, 145804458, 170517078, 218706687, 291608916, 341034156, 437413374, 558917089, 874826748, 1117834178, 1676751267, 2235668356, 3353502534, 5030253801, 6707005068, 10060507602, 20121015204]

約数ペア:

[(1, 20121015204), (2, 10060507602), (3, 6707005068), (4, 5030253801), (6, 3353502534), (9, 2235668356), (12, 1676751267), (18, 1117834178), (23, 874826748), (36, 558917089), (46, 437413374), (59, 341034156), (69, 291608916), (92, 218706687), (118, 170517078), (138, 145804458), (177, 113678052), (207, 97202972), (236, 85258539), (276, 72902229), (354, 56839026), (414, 48601486), (419, 48021516), (531, 37892684), (708, 28419513), (828, 24300743), (838, 24010758), (983, 20468988), (1062, 18946342), (1257, 16007172), (1357, 14827572), (1676, 12005379), (1966, 10234494), (2124, 9473171), (2514, 8003586), (2714, 7413786), (2949, 6822996), (3771, 5335724), (3932, 5117247), (4071, 4942524), (5028, 4001793), (5428, 3706893), (5898, 3411498), (7542, 2667862), (8142, 2471262), (8847, 2274332), (9637, 2087892), (11796, 1705749), (12213, 1647508), (15084, 1333931), (16284, 1235631), (17694, 1137166), (19274, 1043946), (22609, 889956), (24426, 823754), (24721, 813924), (28911, 695964), (35388, 568583), (38548, 521973), (45218, 444978), (48852, 411877), (49442, 406962), (57822, 347982), (57997, 346932), (67827, 296652), (74163, 271308), (86733, 231988), (90436, 222489), (98884, 203481), (115644, 173991), (115994, 173466), (135654, 148326)]