20915160

素因数分解:

$2^3\times 3^1\times 5^1\times 7^2\times {\mathrm{3557}}^1$

素因数の和:3585

約数の個数: 96

約数和(自身を含む): 73010160

約数和(自身を除く): 52095000

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 49, 56, 60, 70, 84, 98, 105, 120, 140, 147, 168, 196, 210, 245, 280, 294, 392, 420, 490, 588, 735, 840, 980, 1176, 1470, 1960, 2940, 3557, 5880, 7114, 10671, 14228, 17785, 21342, 24899, 28456, 35570, 42684, 49798, 53355, 71140, 74697, 85368, 99596, 106710, 124495, 142280, 149394, 174293, 199192, 213420, 248990, 298788, 348586, 373485, 426840, 497980, 522879, 597576, 697172, 746970, 871465, 995960, 1045758, 1394344, 1493940, 1742930, 2091516, 2614395, 2987880, 3485860, 4183032, 5228790, 6971720, 10457580, 20915160]

約数ペア:

[(1, 20915160), (2, 10457580), (3, 6971720), (4, 5228790), (5, 4183032), (6, 3485860), (7, 2987880), (8, 2614395), (10, 2091516), (12, 1742930), (14, 1493940), (15, 1394344), (20, 1045758), (21, 995960), (24, 871465), (28, 746970), (30, 697172), (35, 597576), (40, 522879), (42, 497980), (49, 426840), (56, 373485), (60, 348586), (70, 298788), (84, 248990), (98, 213420), (105, 199192), (120, 174293), (140, 149394), (147, 142280), (168, 124495), (196, 106710), (210, 99596), (245, 85368), (280, 74697), (294, 71140), (392, 53355), (420, 49798), (490, 42684), (588, 35570), (735, 28456), (840, 24899), (980, 21342), (1176, 17785), (1470, 14228), (1960, 10671), (2940, 7114), (3557, 5880)]