21913680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1$

素因数の和:205

約数の個数: 160

約数和(自身を含む): 74245248

約数和(自身を除く): 52331568

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 30, 34, 40, 41, 48, 51, 60, 68, 80, 82, 85, 102, 120, 123, 131, 136, 164, 170, 204, 205, 240, 246, 255, 262, 272, 328, 340, 393, 408, 410, 492, 510, 524, 615, 655, 656, 680, 697, 786, 816, 820, 984, 1020, 1048, 1230, 1310, 1360, 1394, 1572, 1640, 1965, 1968, 2040, 2091, 2096, 2227, 2460, 2620, 2788, 3144, 3280, 3485, 3930, 4080, 4182, 4454, 4920, 5240, 5371, 5576, 6288, 6681, 6970, 7860, 8364, 8908, 9840, 10455, 10480, 10742, 11135, 11152, 13362, 13940, 15720, 16113, 16728, 17816, 20910, 21484, 22270, 26724, 26855, 27880, 31440, 32226, 33405, 33456, 35632, 41820, 42968, 44540, 53448, 53710, 55760, 64452, 66810, 80565, 83640, 85936, 89080, 91307, 106896, 107420, 128904, 133620, 161130, 167280, 178160, 182614, 214840, 257808, 267240, 273921, 322260, 365228, 429680, 456535, 534480, 547842, 644520, 730456, 913070, 1095684, 1289040, 1369605, 1460912, 1826140, 2191368, 2739210, 3652280, 4382736, 5478420, 7304560, 10956840, 21913680]

約数ペア:

[(1, 21913680), (2, 10956840), (3, 7304560), (4, 5478420), (5, 4382736), (6, 3652280), (8, 2739210), (10, 2191368), (12, 1826140), (15, 1460912), (16, 1369605), (17, 1289040), (20, 1095684), (24, 913070), (30, 730456), (34, 644520), (40, 547842), (41, 534480), (48, 456535), (51, 429680), (60, 365228), (68, 322260), (80, 273921), (82, 267240), (85, 257808), (102, 214840), (120, 182614), (123, 178160), (131, 167280), (136, 161130), (164, 133620), (170, 128904), (204, 107420), (205, 106896), (240, 91307), (246, 89080), (255, 85936), (262, 83640), (272, 80565), (328, 66810), (340, 64452), (393, 55760), (408, 53710), (410, 53448), (492, 44540), (510, 42968), (524, 41820), (615, 35632), (655, 33456), (656, 33405), (680, 32226), (697, 31440), (786, 27880), (816, 26855), (820, 26724), (984, 22270), (1020, 21484), (1048, 20910), (1230, 17816), (1310, 16728), (1360, 16113), (1394, 15720), (1572, 13940), (1640, 13362), (1965, 11152), (1968, 11135), (2040, 10742), (2091, 10480), (2096, 10455), (2227, 9840), (2460, 8908), (2620, 8364), (2788, 7860), (3144, 6970), (3280, 6681), (3485, 6288), (3930, 5576), (4080, 5371), (4182, 5240), (4454, 4920)]