491511720

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20177}}^1$

素因数の和:20227

約数の個数: 128

約数和(自身を含む): 1743379200

約数和(自身を除く): 1251867480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 29, 30, 35, 40, 42, 56, 58, 60, 70, 84, 87, 105, 116, 120, 140, 145, 168, 174, 203, 210, 232, 280, 290, 348, 406, 420, 435, 580, 609, 696, 812, 840, 870, 1015, 1160, 1218, 1624, 1740, 2030, 2436, 3045, 3480, 4060, 4872, 6090, 8120, 12180, 20177, 24360, 40354, 60531, 80708, 100885, 121062, 141239, 161416, 201770, 242124, 282478, 302655, 403540, 423717, 484248, 564956, 585133, 605310, 706195, 807080, 847434, 1129912, 1170266, 1210620, 1412390, 1694868, 1755399, 2118585, 2340532, 2421240, 2824780, 2925665, 3389736, 3510798, 4095931, 4237170, 4681064, 5649560, 5851330, 7021596, 8191862, 8474340, 8776995, 11702660, 12287793, 14043192, 16383724, 16948680, 17553990, 20479655, 23405320, 24575586, 32767448, 35107980, 40959310, 49151172, 61438965, 70215960, 81918620, 98302344, 122877930, 163837240, 245755860, 491511720]

約数ペア:

[(1, 491511720), (2, 245755860), (3, 163837240), (4, 122877930), (5, 98302344), (6, 81918620), (7, 70215960), (8, 61438965), (10, 49151172), (12, 40959310), (14, 35107980), (15, 32767448), (20, 24575586), (21, 23405320), (24, 20479655), (28, 17553990), (29, 16948680), (30, 16383724), (35, 14043192), (40, 12287793), (42, 11702660), (56, 8776995), (58, 8474340), (60, 8191862), (70, 7021596), (84, 5851330), (87, 5649560), (105, 4681064), (116, 4237170), (120, 4095931), (140, 3510798), (145, 3389736), (168, 2925665), (174, 2824780), (203, 2421240), (210, 2340532), (232, 2118585), (280, 1755399), (290, 1694868), (348, 1412390), (406, 1210620), (420, 1170266), (435, 1129912), (580, 847434), (609, 807080), (696, 706195), (812, 605310), (840, 585133), (870, 564956), (1015, 484248), (1160, 423717), (1218, 403540), (1624, 302655), (1740, 282478), (2030, 242124), (2436, 201770), (3045, 161416), (3480, 141239), (4060, 121062), (4872, 100885), (6090, 80708), (8120, 60531), (12180, 40354), (20177, 24360)]