28020061980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{2617}}^1\times {\mathrm{3499}}^1$

素因数の和:6148

約数の個数: 144

約数和(自身を含む): 90053964000

約数和(自身を除く): 62033902020

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 30, 34, 36, 45, 51, 60, 68, 85, 90, 102, 153, 170, 180, 204, 255, 306, 340, 510, 612, 765, 1020, 1530, 2617, 3060, 3499, 5234, 6998, 7851, 10468, 10497, 13085, 13996, 15702, 17495, 20994, 23553, 26170, 31404, 31491, 34990, 39255, 41988, 44489, 47106, 52340, 52485, 59483, 62982, 69980, 78510, 88978, 94212, 104970, 117765, 118966, 125964, 133467, 157020, 157455, 177956, 178449, 209940, 222445, 235530, 237932, 266934, 297415, 314910, 356898, 400401, 444890, 471060, 533868, 535347, 594830, 629820, 667335, 713796, 800802, 889780, 892245, 1070694, 1189660, 1334670, 1601604, 1784490, 2002005, 2141388, 2669340, 2676735, 3568980, 4004010, 5353470, 8008020, 9156883, 10706940, 18313766, 27470649, 36627532, 45784415, 54941298, 82411947, 91568830, 109882596, 137353245, 155667011, 164823894, 183137660, 274706490, 311334022, 329647788, 412059735, 467001033, 549412980, 622668044, 778335055, 824119470, 934002066, 1401003099, 1556670110, 1648238940, 1868004132, 2335005165, 2802006198, 3113340220, 4670010330, 5604012396, 7005015495, 9340020660, 14010030990, 28020061980]

約数ペア:

[(1, 28020061980), (2, 14010030990), (3, 9340020660), (4, 7005015495), (5, 5604012396), (6, 4670010330), (9, 3113340220), (10, 2802006198), (12, 2335005165), (15, 1868004132), (17, 1648238940), (18, 1556670110), (20, 1401003099), (30, 934002066), (34, 824119470), (36, 778335055), (45, 622668044), (51, 549412980), (60, 467001033), (68, 412059735), (85, 329647788), (90, 311334022), (102, 274706490), (153, 183137660), (170, 164823894), (180, 155667011), (204, 137353245), (255, 109882596), (306, 91568830), (340, 82411947), (510, 54941298), (612, 45784415), (765, 36627532), (1020, 27470649), (1530, 18313766), (2617, 10706940), (3060, 9156883), (3499, 8008020), (5234, 5353470), (6998, 4004010), (7851, 3568980), (10468, 2676735), (10497, 2669340), (13085, 2141388), (13996, 2002005), (15702, 1784490), (17495, 1601604), (20994, 1334670), (23553, 1189660), (26170, 1070694), (31404, 892245), (31491, 889780), (34990, 800802), (39255, 713796), (41988, 667335), (44489, 629820), (47106, 594830), (52340, 535347), (52485, 533868), (59483, 471060), (62982, 444890), (69980, 400401), (78510, 356898), (88978, 314910), (94212, 297415), (104970, 266934), (117765, 237932), (118966, 235530), (125964, 222445), (133467, 209940), (157020, 178449), (157455, 177956)]