19888830

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1$

素因数の和:306

約数の個数: 96

約数和(自身を含む): 56609280

約数和(自身を除く): 36720450

約数列:

[1, 2, 3, 5, 6, 9, 10, 13, 15, 18, 26, 30, 39, 45, 65, 78, 89, 90, 117, 130, 178, 191, 195, 234, 267, 382, 390, 445, 534, 573, 585, 801, 890, 955, 1146, 1157, 1170, 1335, 1602, 1719, 1910, 2314, 2483, 2670, 2865, 3438, 3471, 4005, 4966, 5730, 5785, 6942, 7449, 8010, 8595, 10413, 11570, 12415, 14898, 16999, 17190, 17355, 20826, 22347, 24830, 33998, 34710, 37245, 44694, 50997, 52065, 74490, 84995, 101994, 104130, 111735, 152991, 169990, 220987, 223470, 254985, 305982, 441974, 509970, 662961, 764955, 1104935, 1325922, 1529910, 1988883, 2209870, 3314805, 3977766, 6629610, 9944415, 19888830]

約数ペア:

[(1, 19888830), (2, 9944415), (3, 6629610), (5, 3977766), (6, 3314805), (9, 2209870), (10, 1988883), (13, 1529910), (15, 1325922), (18, 1104935), (26, 764955), (30, 662961), (39, 509970), (45, 441974), (65, 305982), (78, 254985), (89, 223470), (90, 220987), (117, 169990), (130, 152991), (178, 111735), (191, 104130), (195, 101994), (234, 84995), (267, 74490), (382, 52065), (390, 50997), (445, 44694), (534, 37245), (573, 34710), (585, 33998), (801, 24830), (890, 22347), (955, 20826), (1146, 17355), (1157, 17190), (1170, 16999), (1335, 14898), (1602, 12415), (1719, 11570), (1910, 10413), (2314, 8595), (2483, 8010), (2670, 7449), (2865, 6942), (3438, 5785), (3471, 5730), (4005, 4966)]