278426460

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{727}}^1$

素因数の和:1243

約数の個数: 96

約数和(自身を含む): 842429952

約数和(自身を除く): 564003492

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 491, 727, 780, 982, 1454, 1473, 1964, 2181, 2455, 2908, 2946, 3635, 4362, 4910, 5892, 6383, 7270, 7365, 8724, 9451, 9820, 10905, 12766, 14540, 14730, 18902, 19149, 21810, 25532, 28353, 29460, 31915, 37804, 38298, 43620, 47255, 56706, 63830, 76596, 94510, 95745, 113412, 127660, 141765, 189020, 191490, 283530, 356957, 382980, 567060, 713914, 1070871, 1427828, 1784785, 2141742, 3569570, 4283484, 4640441, 5354355, 7139140, 9280882, 10708710, 13921323, 18561764, 21417420, 23202205, 27842646, 46404410, 55685292, 69606615, 92808820, 139213230, 278426460]

約数ペア:

[(1, 278426460), (2, 139213230), (3, 92808820), (4, 69606615), (5, 55685292), (6, 46404410), (10, 27842646), (12, 23202205), (13, 21417420), (15, 18561764), (20, 13921323), (26, 10708710), (30, 9280882), (39, 7139140), (52, 5354355), (60, 4640441), (65, 4283484), (78, 3569570), (130, 2141742), (156, 1784785), (195, 1427828), (260, 1070871), (390, 713914), (491, 567060), (727, 382980), (780, 356957), (982, 283530), (1454, 191490), (1473, 189020), (1964, 141765), (2181, 127660), (2455, 113412), (2908, 95745), (2946, 94510), (3635, 76596), (4362, 63830), (4910, 56706), (5892, 47255), (6383, 43620), (7270, 38298), (7365, 37804), (8724, 31915), (9451, 29460), (9820, 28353), (10905, 25532), (12766, 21810), (14540, 19149), (14730, 18902)]