20495160

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{2711}}^1$

素因数の和:2738

約数の個数: 128

約数和(自身を含む): 78105600

約数和(自身を除く): 57610440

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 54, 56, 60, 63, 70, 72, 84, 90, 105, 108, 120, 126, 135, 140, 168, 180, 189, 210, 216, 252, 270, 280, 315, 360, 378, 420, 504, 540, 630, 756, 840, 945, 1080, 1260, 1512, 1890, 2520, 2711, 3780, 5422, 7560, 8133, 10844, 13555, 16266, 18977, 21688, 24399, 27110, 32532, 37954, 40665, 48798, 54220, 56931, 65064, 73197, 75908, 81330, 94885, 97596, 108440, 113862, 121995, 146394, 151816, 162660, 170793, 189770, 195192, 227724, 243990, 284655, 292788, 325320, 341586, 365985, 379540, 455448, 487980, 512379, 569310, 585576, 683172, 731970, 759080, 853965, 975960, 1024758, 1138620, 1366344, 1463940, 1707930, 2049516, 2277240, 2561895, 2927880, 3415860, 4099032, 5123790, 6831720, 10247580, 20495160]

約数ペア:

[(1, 20495160), (2, 10247580), (3, 6831720), (4, 5123790), (5, 4099032), (6, 3415860), (7, 2927880), (8, 2561895), (9, 2277240), (10, 2049516), (12, 1707930), (14, 1463940), (15, 1366344), (18, 1138620), (20, 1024758), (21, 975960), (24, 853965), (27, 759080), (28, 731970), (30, 683172), (35, 585576), (36, 569310), (40, 512379), (42, 487980), (45, 455448), (54, 379540), (56, 365985), (60, 341586), (63, 325320), (70, 292788), (72, 284655), (84, 243990), (90, 227724), (105, 195192), (108, 189770), (120, 170793), (126, 162660), (135, 151816), (140, 146394), (168, 121995), (180, 113862), (189, 108440), (210, 97596), (216, 94885), (252, 81330), (270, 75908), (280, 73197), (315, 65064), (360, 56931), (378, 54220), (420, 48798), (504, 40665), (540, 37954), (630, 32532), (756, 27110), (840, 24399), (945, 21688), (1080, 18977), (1260, 16266), (1512, 13555), (1890, 10844), (2520, 8133), (2711, 7560), (3780, 5422)]