7888749700

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{727}}^1$

素因数の和:1262

約数の個数: 144

約数和(自身を含む): 19586496384

約数和(自身を除く): 11697746684

約数列:

[1, 2, 4, 5, 10, 13, 17, 20, 25, 26, 34, 50, 52, 65, 68, 85, 100, 130, 170, 221, 260, 325, 340, 425, 442, 491, 650, 727, 850, 884, 982, 1105, 1300, 1454, 1700, 1964, 2210, 2455, 2908, 3635, 4420, 4910, 5525, 6383, 7270, 8347, 9451, 9820, 11050, 12275, 12359, 12766, 14540, 16694, 18175, 18902, 22100, 24550, 24718, 25532, 31915, 33388, 36350, 37804, 41735, 47255, 49100, 49436, 61795, 63830, 72700, 83470, 94510, 108511, 123590, 127660, 159575, 160667, 166940, 189020, 208675, 217022, 236275, 247180, 308975, 319150, 321334, 356957, 417350, 434044, 472550, 542555, 617950, 638300, 642668, 713914, 803335, 834700, 945100, 1085110, 1235900, 1427828, 1606670, 1784785, 2170220, 2712775, 3213340, 3569570, 4016675, 4640441, 5425550, 6068269, 7139140, 8033350, 8923925, 9280882, 10851100, 12136538, 16066700, 17847850, 18561764, 23202205, 24273076, 30341345, 35695700, 46404410, 60682690, 78887497, 92808820, 116011025, 121365380, 151706725, 157774994, 232022050, 303413450, 315549988, 394437485, 464044100, 606826900, 788874970, 1577749940, 1972187425, 3944374850, 7888749700]

約数ペア:

[(1, 7888749700), (2, 3944374850), (4, 1972187425), (5, 1577749940), (10, 788874970), (13, 606826900), (17, 464044100), (20, 394437485), (25, 315549988), (26, 303413450), (34, 232022050), (50, 157774994), (52, 151706725), (65, 121365380), (68, 116011025), (85, 92808820), (100, 78887497), (130, 60682690), (170, 46404410), (221, 35695700), (260, 30341345), (325, 24273076), (340, 23202205), (425, 18561764), (442, 17847850), (491, 16066700), (650, 12136538), (727, 10851100), (850, 9280882), (884, 8923925), (982, 8033350), (1105, 7139140), (1300, 6068269), (1454, 5425550), (1700, 4640441), (1964, 4016675), (2210, 3569570), (2455, 3213340), (2908, 2712775), (3635, 2170220), (4420, 1784785), (4910, 1606670), (5525, 1427828), (6383, 1235900), (7270, 1085110), (8347, 945100), (9451, 834700), (9820, 803335), (11050, 713914), (12275, 642668), (12359, 638300), (12766, 617950), (14540, 542555), (16694, 472550), (18175, 434044), (18902, 417350), (22100, 356957), (24550, 321334), (24718, 319150), (25532, 308975), (31915, 247180), (33388, 236275), (36350, 217022), (37804, 208675), (41735, 189020), (47255, 166940), (49100, 160667), (49436, 159575), (61795, 127660), (63830, 123590), (72700, 108511), (83470, 94510)]