19891560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{311}}^1$

素因数の和:379

約数の個数: 128

約数和(自身を含む): 66044160

約数和(自身を除く): 46152600

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 41, 52, 60, 65, 78, 82, 104, 120, 123, 130, 156, 164, 195, 205, 246, 260, 311, 312, 328, 390, 410, 492, 520, 533, 615, 622, 780, 820, 933, 984, 1066, 1230, 1244, 1555, 1560, 1599, 1640, 1866, 2132, 2460, 2488, 2665, 3110, 3198, 3732, 4043, 4264, 4665, 4920, 5330, 6220, 6396, 7464, 7995, 8086, 9330, 10660, 12129, 12440, 12751, 12792, 15990, 16172, 18660, 20215, 21320, 24258, 25502, 31980, 32344, 37320, 38253, 40430, 48516, 51004, 60645, 63755, 63960, 76506, 80860, 97032, 102008, 121290, 127510, 153012, 161720, 165763, 191265, 242580, 255020, 306024, 331526, 382530, 485160, 497289, 510040, 663052, 765060, 828815, 994578, 1326104, 1530120, 1657630, 1989156, 2486445, 3315260, 3978312, 4972890, 6630520, 9945780, 19891560]

約数ペア:

[(1, 19891560), (2, 9945780), (3, 6630520), (4, 4972890), (5, 3978312), (6, 3315260), (8, 2486445), (10, 1989156), (12, 1657630), (13, 1530120), (15, 1326104), (20, 994578), (24, 828815), (26, 765060), (30, 663052), (39, 510040), (40, 497289), (41, 485160), (52, 382530), (60, 331526), (65, 306024), (78, 255020), (82, 242580), (104, 191265), (120, 165763), (123, 161720), (130, 153012), (156, 127510), (164, 121290), (195, 102008), (205, 97032), (246, 80860), (260, 76506), (311, 63960), (312, 63755), (328, 60645), (390, 51004), (410, 48516), (492, 40430), (520, 38253), (533, 37320), (615, 32344), (622, 31980), (780, 25502), (820, 24258), (933, 21320), (984, 20215), (1066, 18660), (1230, 16172), (1244, 15990), (1555, 12792), (1560, 12751), (1599, 12440), (1640, 12129), (1866, 10660), (2132, 9330), (2460, 8086), (2488, 7995), (2665, 7464), (3110, 6396), (3198, 6220), (3732, 5330), (4043, 4920), (4264, 4665)]